One by one, five to a grave, the coffins are buried in the red earth of this ill-kept corner of a South African cemetery.
The scrawl on the cheap wood attests to their anonymity: "Unknown B/Male."
These men were migrants from elsewhere in Africa with next to nothing who sought a living in the thriving underground economy of Gauteng province, a name that roughly translates to "land of gold."
Instead of fortune, many found death, their bodies unnamed and unclaimed more than 4,300 in Gauteng between 2014 and 2017 alone.
Some of those lives ended here at the Olifantsvlei cemetery, in silence, among tufts of grass growing over tiny placards that read: Pauper Block. There are coffins so tiny that they could only belong to children.
As people worldwide flee war, hunger and a lack of jobs, global migration has soared to record highs, with more than 258 million international migrants in 2017.
That is an increase of 49 per cent from the turn of the century, according to the United Nations.
Far less visible, however, has been the toll of this mass migration: The tens of thousands of people who die or simply disappear during their journeys, never to be seen again.
A growing number of migrants have drowned, died in deserts or fallen prey to traffickers, leaving their families to wonder what on earth happened to them.
At the same time, anonymous bodies are filling cemeteries around the world, like the one in Gauteng.
In most cases, nobody is keeping track: Barely counted in life, these people don't register in death, as if they never lived at all.
An Associated Press tally has documented at least 56,800 migrants dead or missing worldwide since 2014 almost double the number found in the world's only official attempt to try to count them, by the UN's International Organisation for Migration.
The IOM toll as of October 1 was more than 28,500.
The AP came up with almost 28,300 additional dead or missing migrants by compiling information from other international groups, requesting forensic records, missing persons reports and death records, and sifting through data from thousands of interviews with migrants.
The AP's tally is still low.
Bodies of migrants lie undiscovered in desert sands or at the bottom of the sea.
And families don't always report loved ones as missing because they are illegal, or because they left home without saying exactly where they were headed.
The official UN toll focuses mostly on Europe, but even there cases fall through the cracks.
The political tide is turning against migrants in Europe just as in the United States, where the government is cracking down heavily on caravans of Central Americans trying to get in.
One result is that money is drying up for projects to track migration and its costs.
For example, when more than 800 people died in an April 2015 shipwreck off the coast of Italy, Europe's deadliest migrant sea disaster, Italian investigators pledged to identify them and find their families.
More than three years later, under a new populist government, funding for this work is being cut off.
Beyond Europe, information is even more scarce. Little is known about the toll in South America, where the Venezuelan migration is among the world's biggest today, and in Asia, the top region for numbers of migrants.
The result is that governments vastly underestimate the toll of migration, a major political and social issue in most of the world today.
"No matter where you stand on the whole migration management debate....these are still human beings on the move," said Bram Frouws, the head of the Mixed Migration Centre , based in Geneva, which has done surveys of more than 20,000 migrants in its 4Mi project since 2014.
"Whether it's refugees or people moving for jobs, they are human beings."
They leave behind families caught between hope and mourning, like that of Safi al-Bahri.
Her son, Majdi Barhoumi, left their hometown of Ras Jebel, Tunisia, on May 7, 2011, headed for Europe in a small boat with a dozen other migrants.
The boat sank and Barhoumi hasn't been heard from since.
In a sign of faith that he is still alive, his parents built an animal pen with a brood of hens, a few cows and a dog to stand watch until he returns.
"I just wait for him. I always imagine him behind me, at home, in the market, everywhere," said al-Bahari.
"When I hear a voice at night, I think he's come back. When I hear the sound of a motorcycle, I think my son is back."
Of the world's migration crises, Europe's has been the most cruelly visible.
Images of the lifeless body of a Kurdish toddler on a beach, frozen tent camps in Eastern Europe, and a nearly numbing succession of deadly shipwrecks have been transmitted around the world, adding to the furore over migration.
In the Mediterranean, scores of tankers, cargo boats, cruise ships and military vessels tower over tiny, crowded rafts powered by an outboard motor for a one-way trip.
Even larger boats carrying hundreds of migrants may go down when soft breezes turn into battering winds and thrashing waves further from shore.
Two shipwrecks and the deaths of at least 368 people off the coast of Italy in October 2013 prompted the IOM's research into migrant deaths.
The organisation has focused on deaths in the Mediterranean, although its researchers plead for more data from elsewhere in the world.
This year alone, the IOM has found more than 1,700 deaths in the waters that divide Africa and Europe.
Like the lost Tunisians of Ras Jebel, most of them set off to look for work.
Barhoumi, his friends, cousins and other would-be migrants camped in the seaside brush the night before their departure, listening to the crash of the waves that ultimately would sink their raft.
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